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dc.contributor.authorMansha, Shampyen
dc.contributor.authorTsukerman, Igoren
dc.contributor.authorChong, Yi Dongen
dc.identifier.citationMansha, S., Tsukerman, I., & Chong, Y. D. (2017). The FLAME-slab method for electromagnetic wave scattering in aperiodic slabs. Optics Express, 25(26), 32602-. doi:10.1364/OE.25.032602en
dc.description.abstractThe proposed numerical method, “FLAME-slab,” solves electromagnetic wave scattering problems for aperiodic slab structures by exploiting short-range regularities in these structures. The computational procedure involves special difference schemes with high accuracy even on coarse grids. These schemes are based on Trefftz approximations, utilizing functions that locally satisfy the governing differential equations, as is done in the Flexible Local Approximation Method (FLAME). Radiation boundary conditions are implemented via Fourier expansions in the air surrounding the slab. When applied to ensembles of slab structures with identical short-range features, such as amorphous or quasicrystalline lattices, the method is significantly more efficient, both in runtime and in memory consumption, than traditional approaches. This efficiency is due to the fact that the Trefftz functions need to be computed only once for the whole ensemble.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent16 p.en
dc.relation.ispartofseriesOptics Expressen
dc.rights© 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.en
dc.subjectPhotonic Crystalsen
dc.subjectComputational Electromagnetic Methodsen
dc.titleThe FLAME-slab method for electromagnetic wave scattering in aperiodic slabsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en
dc.description.versionPublished versionen
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